FR2607881A2 - Screw with an insulated head particularly for electrical applications - Google Patents

Screw with an insulated head particularly for electrical applications Download PDF

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Publication number
FR2607881A2
FR2607881A2 FR8617135A FR8617135A FR2607881A2 FR 2607881 A2 FR2607881 A2 FR 2607881A2 FR 8617135 A FR8617135 A FR 8617135A FR 8617135 A FR8617135 A FR 8617135A FR 2607881 A2 FR2607881 A2 FR 2607881A2
Authority
FR
France
Prior art keywords
head
transmission member
piece
screw
produced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR8617135A
Other languages
French (fr)
Inventor
Andre Georges Beaurain
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VERLANT ET BEAURAIN
Original Assignee
VERLANT ET BEAURAIN
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR8601104A external-priority patent/FR2593572B1/en
Application filed by VERLANT ET BEAURAIN filed Critical VERLANT ET BEAURAIN
Priority to FR8617135A priority Critical patent/FR2607881A2/en
Publication of FR2607881A2 publication Critical patent/FR2607881A2/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/004—Sealing; Insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/021—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load by means of a frangible part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/006—Non-metallic fasteners using screw-thread

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insulating Bodies (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

Screw with an insulated head according to Claim 1 of the main patent including three parts assembled to each other so as to constitute a single-unit piece: a head 10 on which the screwing torque is exerted; an intermediate piece 12 called a transmission member, produced from an insulating material and interposed between the said head and a threaded shank 14 constituting the third part, the said head and the said shank being in engagement with the transmission member 12 so that the screwing torque exerted on the head is transmitted to the threaded shank via the said transmission member, which electrically insulates the head 10 from the shank 14, characterised in that the said transmission member 12 is produced in the form of an axisymmetrical piece further serving as a sealing means, the piece 16 in which it is inserted being produced from a flexible material.

Description

La présente invention est relative à une vis à tête isolée du type décrit dans le brevet principal. c'est à dire comprenant trois parties assemblées les unes sur les autres de manière à constituer une pièce monobloc : une tête sur laquelle s'exerce le couple de vissage : une pièce intermédiaire, appelée organe de transmission, réalisée en matériau isolant et interposée entre ladite tête et une tige filetée constituant la troisième partie, ladite tête et ladite tige filetée étant en prise avec cet organe de transmission, de manière que le couple exercé sur la tête assure le vissage de la tige filetée, l'organe de transmission isolant ladite tete de la tige filetée. The present invention relates to an insulated head screw of the type described in the main patent. that is to say comprising three parts assembled one on the other so as to constitute a single piece: a head on which the screwing torque is exerted: an intermediate piece, called transmission member, made of insulating material and interposed between said head and a threaded rod constituting the third part, said head and said threaded rod being engaged with this transmission member, so that the torque exerted on the head ensures the screwing of the threaded rod, the transmission member isolating said threaded rod head.

Selon cette addition, on utilise l'organe de transmission réalisé en matériau isolant et rigide et conçu sous la forme d'une pièce de révolution, comme moyen d'étanchéité parfait, à condition que la pièce dans laquelle il vient s'insérer soit réalisée en matière souple, par exemple en élastomere.  According to this addition, use is made of the transmission member made of insulating and rigid material and designed in the form of a part of revolution, as perfect sealing means, provided that the part in which it is inserted is made in flexible material, for example in elastomer.

D'autres caractéristiques et avantages de l'addition ressor iront de la description faite ci-après en référence au dessin annexe, qui en illustre un exemple de réalisation dépourvu de tout caractère limitatif. Sur le messin
- La figure 1 est une vue en élévation d'une vis selon cette addition, l'organe de transmission étant représente en coupe et,
- La figure 2 est une vue similaire à la figure 1 mais avec un plan de coupe de l'ensemble décalé de iO'. Other characteristics and advantages of the addition will be apparent from the description given below with reference to the accompanying drawing, which illustrates an exemplary embodiment thereof without any limiting character. On the messin
FIG. 1 is an elevation view of a screw according to this addition, the transmission member being shown in section and,
- Figure 2 is a view similar to Figure 1 but with a section plane of the assembly offset by iO '.

Comme on le voit sur le dessin, la vis isolante selon l'addition est conforme à celle décrite dans le brevet principal et elle comprend essentiellement trois parties
- Une tète 10 sur laquelle s'exerce l'effort ou le couple de vissage
- Une partie intermédiaire en un matériau isolant rigide 12 ou organe de transmission ; et
- Une tige filetée 14, montée sur l'organe de transmission 12 de manière que le couple de vissage exercé sur la tête 10 soit transmis à la tige filetée 14 par l'organe de transmission 12.As seen in the drawing, the insulating screw according to the addition conforms to that described in the main patent and it essentially comprises three parts
- A head 10 on which the effort or the torque is exerted
- An intermediate part made of a rigid insulating material 12 or transmission member; and
- A threaded rod 14, mounted on the transmission member 12 so that the screwing torque exerted on the head 10 is transmitted to the threaded rod 14 by the transmission member 12.

Ces trois parties 10, 12 et 14 sont assemblées de manière à constituer une pièce monobloc, dans laquelle l'organe de transmission 12 isole electriquement la tête 10 de la tige filetée 14. These three parts 10, 12 and 14 are assembled so as to constitute a single piece, in which the transmission member 12 electrically isolates the head 10 from the threaded rod 14.

Selon l'addition, l'organe de transmission 12 est réalisé sous la forme d'une pièce de révolution et il est en outre conçu de façon à assurer l'étancheité, la pièce dans laquelle il vient s'inserer étant, dans ce but, réalisée en matière souple, par exemple en élastomère.  According to the addition, the transmission member 12 is produced in the form of a part of revolution and it is also designed so as to ensure watertightness, the part in which it is inserted being, for this purpose , made of flexible material, for example elastomer.

Dans l'exemple représenté, l'organe de transmission a été représenté sous la forme d'un cylindre. Il s'agit là d'un exemple non limitatif, la forme extérieure de révolution de cet organe de transmission 12 pouvant épouser d'autres profils de révolution : tronc de cône, sphère, etc. In the example shown, the transmission member has been represented in the form of a cylinder. This is a non-limiting example, the external shape of revolution of this transmission member 12 being able to match other profiles of revolution: truncated cone, sphere, etc.

Gråce à cette addition, on réalise une vis peu coûteuse qui est non seulement isolante mais qui, en outre, assure la fonction d'étanchéité, ce qui est particulièrement important lorsque ce type de vis est utilisé dans des appareillages électriques, du type connecteurs de dérivation pour lignes électr - ques sous tension. Thanks to this addition, an inexpensive screw is produced which is not only insulating but which also ensures the sealing function, which is particularly important when this type of screw is used in electrical equipment, of the connector type. branch for live electrical lines.

Il demeure bien entendu que cette invention n'est pas limitée à l'exemple de réalisation décrit et représenté, rais qu'elle englobe toutes les variantes.  It remains to be understood that this invention is not limited to the embodiment described and shown, because it encompasses all variants.

Claims (2)

REVENDICATIONS 1- Vis à tête isolée selon la revendication 1-du brevet principal comportant trois parties assemblées les unes aux autres afin de constituer une pièce nonobloc : une tete (10) sur laquelle s'exerce le couple de vissage ; une pièce intermédiaire (12) appelée organe de transmission, réalisée en matériau isolant et interposée entre ladite tête et une tige filetée (14) constituant la troisième partie, ladite tete et ladite tige étant en prise avec l'organe de transmission (12) de manière que le couple de vissage exercé sur la tête soit transmis à la tige filetée par ledit organe de transmission, lequel isole électriquement la tête (10) de la tige (14), caractérisée en ce que ledit organe de transmission (12) est réalisé sous la forme d'une pièce de révcluticn servant en outre de moyen d'étanchéité, la pièce (16) dans laquelle il vient el insérer étant réalisée en matériau souple. 1- Insulated head screw according to claim 1-of the main patent comprising three parts assembled to each other in order to constitute a non-block piece: a head (10) on which the screwing torque is exerted; an intermediate piece (12) called transmission member, made of insulating material and interposed between said head and a threaded rod (14) constituting the third part, said head and said rod being engaged with the transmission member (12) so that the screwing torque exerted on the head is transmitted to the threaded rod by said transmission member, which electrically isolates the head (10) from the rod (14), characterized in that said transmission member (12) is produced in the form of a closure piece also serving as a sealing means, the piece (16) into which it comes to be inserted being made of flexible material. 2- Vis a tête isolée selon la revendication î caractérisee en ce que la pièce (16) est réalisée en élastomère.  2- An insulated head screw according to claim î characterized in that the part (16) is made of elastomer.
FR8617135A 1986-01-27 1986-12-08 Screw with an insulated head particularly for electrical applications Pending FR2607881A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8617135A FR2607881A2 (en) 1986-01-27 1986-12-08 Screw with an insulated head particularly for electrical applications

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8601104A FR2593572B1 (en) 1986-01-27 1986-01-27 INSULATED HEAD SCREWS, ESPECIALLY FOR ELECTRIC APPLICATIONS
FR8617135A FR2607881A2 (en) 1986-01-27 1986-12-08 Screw with an insulated head particularly for electrical applications

Publications (1)

Publication Number Publication Date
FR2607881A2 true FR2607881A2 (en) 1988-06-10

Family

ID=26224988

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8617135A Pending FR2607881A2 (en) 1986-01-27 1986-12-08 Screw with an insulated head particularly for electrical applications

Country Status (1)

Country Link
FR (1) FR2607881A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863572A3 (en) * 1997-03-07 2000-06-21 Ensto Sekko Oy Terminal or jointing clamp for a coated overhead cable and moment screw used therein
CN102979800A (en) * 2011-09-07 2013-03-20 祁文军 Insulation bolt
CN104879365A (en) * 2015-05-04 2015-09-02 优涂扣紧固件(上海)有限公司 Sealing insulating screw and method for manufacturing same
FR3065498A1 (en) * 2017-04-21 2018-10-26 Upeca SECURED HEAD SCREW SYSTEM AND METHOD OF MANUFACTURING SUCH A SYSTEM
US11193522B2 (en) 2016-11-30 2021-12-07 3M Innovative Properties Company Shear bolt

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353968A1 (en) * 1976-06-04 1977-12-30 Wechsler Bernard Junction block for single conductor cables - has screw clamps gripping cables end to end in conducting block
FR2503807A1 (en) * 1981-04-13 1982-10-15 Verlant Et Beaurain Insulated tightening bolt for screw-fastening cable connectors - has shaft head with inserted hexagonal insulating plug preventing electrical contact with cable, and tightenable with allen key
DE3503085A1 (en) * 1984-01-31 1985-09-05 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Terminal for connecting at least one conductor of a power-supply network to another solid conductor of said network
EP0239428A2 (en) * 1986-03-20 1987-09-30 Verlant Et Beaurain Derivation monoblock connector, in particular for live electrical lines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353968A1 (en) * 1976-06-04 1977-12-30 Wechsler Bernard Junction block for single conductor cables - has screw clamps gripping cables end to end in conducting block
FR2503807A1 (en) * 1981-04-13 1982-10-15 Verlant Et Beaurain Insulated tightening bolt for screw-fastening cable connectors - has shaft head with inserted hexagonal insulating plug preventing electrical contact with cable, and tightenable with allen key
DE3503085A1 (en) * 1984-01-31 1985-09-05 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Terminal for connecting at least one conductor of a power-supply network to another solid conductor of said network
EP0239428A2 (en) * 1986-03-20 1987-09-30 Verlant Et Beaurain Derivation monoblock connector, in particular for live electrical lines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863572A3 (en) * 1997-03-07 2000-06-21 Ensto Sekko Oy Terminal or jointing clamp for a coated overhead cable and moment screw used therein
CN102979800A (en) * 2011-09-07 2013-03-20 祁文军 Insulation bolt
CN104879365A (en) * 2015-05-04 2015-09-02 优涂扣紧固件(上海)有限公司 Sealing insulating screw and method for manufacturing same
US11193522B2 (en) 2016-11-30 2021-12-07 3M Innovative Properties Company Shear bolt
FR3065498A1 (en) * 2017-04-21 2018-10-26 Upeca SECURED HEAD SCREW SYSTEM AND METHOD OF MANUFACTURING SUCH A SYSTEM

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